Biotechnology: Principles and Processes Class 12 MCQs Questions with Answers

1. Restriction’ in Restriction enzyme refers to :

2. Gene was synthesized in vitro by

3. In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be

4. Hybridoma technology has been successfully used in

5. Biolistics (gene gun) is suitable for

6. the ecor-1 enzyme is obtained from

7. Who discovered Restricted endonucleas enzymes?

8. The DNA polymerase enzyme used in PCR is obtained from

9. Micro-organisms can be grown in the bioreactors by

10. Significance of ‘heat shock’ method in bacterial transformation is to facilitate:

11. Which of the following steps are catalysed by Taq polymerase in a PCR reaction?

12. Transgenic plants are develop by:

13. The DNA fragments produced by the use of restriction endonucleases can be separated by

14. The DNA polymerase enzyme used in PCR is obtained from

15. Important objective of biotechnology in agriculture section is

16. Plasmid is a:

17. Golden rice is a promising transgenic crop. When released for cultivation, it will help in :

18. Viral genome incroporatcd into host DNA is called:

19. Two microbes found to be very useful in genetic, engineering are:

20. Name the drug used in cancer treatment produced by using biotechnology